EP 0295797 A3 19891115 - PROCESS FOR THE SELECTIVE REDUCTION OF 2-QUINOXALINE-4-OXIDES
Title (en)
PROCESS FOR THE SELECTIVE REDUCTION OF 2-QUINOXALINE-4-OXIDES
Publication
Application
Priority
US 6490887 A 19870619
Abstract (en)
[origin: EP0295797A2] Certain 2-quinoxalinol-4-oxides are selectively reduced to form 2-quinoxalinols employing hydrogen as a reducing agent by reacting such 2-quinoxalinol-4-oxides with a catalyst selected from the group consisting of sulfided platinum, sulfided palladium, sulfided rhodium and sulfided ruthenium.
IPC 1-7
IPC 8 full level
C07D 241/52 (2006.01); B01J 27/045 (2006.01); C07B 61/00 (2006.01); C07D 215/22 (2006.01); C07D 241/44 (2006.01)
CPC (source: EP KR US)
C07D 241/44 (2013.01 - EP KR US); C07D 241/52 (2013.01 - KR)
Citation (search report)
- [YD] US 4636562 A 19870113 - DAVIS RICHARD F [US]
- [Y] PATENT ABSTRACTS OF JAPAN, vol. 9, no. 331 (C-321)[2054], 25th December 1985; & JP-A-60 158 184 (NIPPON KAYAKU K.K.) 19-08-1985
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0295797 A2 19881221; EP 0295797 A3 19891115; EP 0295797 B1 19980107; AT E161832 T1 19980115; AU 1749788 A 19881222; AU 609489 B2 19910502; BR 8802783 A 19881227; CA 1321202 C 19930810; CN 1017995 B 19920826; CN 1030915 A 19890208; DE 3856098 D1 19980212; DE 3856098 T2 19980507; ES 2110396 T3 19980216; FI 882894 A0 19880616; FI 882894 A 19881220; FI 99204 B 19970715; FI 99204 C 19971027; IL 86415 A0 19881115; IL 86415 A 19930221; JP H0629267 B2 19940420; JP S6416772 A 19890120; KR 890000439 A 19890314; KR 900004416 B1 19900625; MX 168769 B 19930607; PH 25129 A 19910219; US 4814444 A 19890321; ZA 883784 B 19891129
DOCDB simple family (application)
EP 88304755 A 19880525; AT 88304755 T 19880525; AU 1749788 A 19880608; BR 8802783 A 19880608; CA 567838 A 19880526; CN 88103659 A 19880617; DE 3856098 T 19880525; ES 88304755 T 19880525; FI 882894 A 19880616; IL 8641588 A 19880518; JP 14924288 A 19880616; KR 880007107 A 19880614; MX 1194288 A 19880617; PH 37047 A 19880610; US 6490887 A 19870619; ZA 883784 A 19880526